Every 85 years it shows it is expected in 2061
Answer:
Towns grew up along the rivers which had access to the sea. Rivers also provided protection from invaders. Farmers grew crops in the fertile fields that surrounded the towns. The lack of mountains was good for farming, but it made the towns easier to be invaded by enemies.
Explanation:
Answer:
Mariana Trench is the deepest point on Earth
Many observations provide a history that one may be able to surmise theories from.